--- product_id: 30987123 title: "RectorSeal Duct Seal 81880 Compound, Easily Applied to Plumbing & Metal Fabrication, Paintable General Purpose Sealant, 1 lb" brand: "rectorseal" price: "VT3517" currency: VUV in_stock: true category: "Rectorseal" url: https://www.desertcart.vu/products/30987123-rectorseal-duct-seal-81880-compound-easily-applied-to-plumbing-metal store_origin: VU region: Vanuatu --- # Water & air tight, resistant to mild acids Effective application range 25°F–120°F Soft, moldable putty for custom sealing RectorSeal Duct Seal 81880 Compound, Easily Applied to Plumbing & Metal Fabrication, Paintable General Purpose Sealant, 1 lb **Brand:** rectorseal **Price:** VT3517 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal smarter, not harder — the tradesman’s secret weapon! ## Quick Answers - **What is this?** RectorSeal Duct Seal 81880 Compound, Easily Applied to Plumbing & Metal Fabrication, Paintable General Purpose Sealant, 1 lb by rectorseal - **How much does it cost?** VT3517 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/30987123-rectorseal-duct-seal-81880-compound-easily-applied-to-plumbing-metal) ## Best For - rectorseal enthusiasts ## Why This Product - Trusted rectorseal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safe & Smart:** Non-toxic, asbestos-free formula that won’t irritate skin or damage plastics—professional-grade peace of mind. - • **Built to Last:** Creates a durable, water-resistant barrier that stands up to water, alcohol, and mild acids without corroding metals. - • **Mold It Your Way:** Soft, reusable putty that adapts to any shape for a perfect seal every time. - • **Paint-Ready Finish:** Apply and paint immediately without bleed-through, blending seamlessly into your project for a clean, professional look. - • **Works in Any Weather:** Reliable application from freezing 25°F to warm 120°F environments—seal with confidence year-round. ## Overview RectorSeal Duct Seal 81880 is a gray, soft, non-toxic putty compound designed for HVAC, plumbing, and metal fabrication sealing. It adheres to most clean, dry surfaces, is reusable, and works effectively between 25°F and 120°F. This asbestos-free sealant creates a water- and air-tight barrier resistant to mild acids and won’t corrode metals or harm plastics. Paintable immediately after application, it’s trusted by professionals for durable, versatile sealing solutions. ## Description Product Description RectorSeal Duct Seal Compound is a gray, soft, non-toxic, putty-type compound that adheres to most clean dry surfaces. The putty like duct sealant compound is easy to use and can be hand applied from 25°F to 120°F. Duct Seal creates an air and water tight seal. Resistant to water, alcohol, and mild acids and bases. Duct Seal Compound is asbestos-free. It will not damage plastic materials, corrode metals, or have adverse effect on human skin. Duct Seal compound; grey in color and putty like; non-corrosive and non-irritant. Can be hand-shaped to any form and reused if necessary, has many applications in HVAC/R, plumbing, metal fabrication, and a superb general purpose sealant around the home. May be painted immediately after applying and won't bleed through dry paint film. FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets. From the Manufacturer RectorSeal Duct Seal Compound is a gray, permanently soft, non-toxic, putty type compound which adheres to most clean, dry surfaces. It is designed to be used when sealing around the ends of electrical conduit and boxes. 10-Pound. ## Features - APPLICATION: Rectorseal duct seal compound is a gray, soft, non-toxic, putty-type compound that adheres to most clean dry surfaces; Duct Seal can be hand-molded to any form and reused if necessary - EASY TO USE: The putty like duct sealant compound is easy to use and can be hand applied from 25°f to 120°f; can be applied to electrical conduit ends and boxes, flashings, and service mast entries - SUPERIOR FORMULA: Duct seal creates an air and water tight seal; resistant to water, alcohol, and mild acids and bases; duct seal compound is asbestos-free; it will not damage plastic materials, corrode metals, or have adverse effect on human skin - SPECIFICATIONS: Duct seal compound; grey in color and putty like; non-corrosive and non-irritant; can be hand-shaped to any form and reused if necessary, has many applications in hvac/r, plumbing, metal fabrication, and a superb general purpose sealant around the home; may be painted immediately after applying and won't bleed through dry paint film - FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008A3UG94 | | Best Sellers Rank | #2,310 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Hardware Sealers | | Brand Name | Rectorseal | | Color | Gray | | Compatible Material | Metal | | Customer Reviews | 4.7 4.7 out of 5 stars (1,735) | | Global Trade Identification Number | 00021449818803 | | Included Components | Duct Seal Compound | | Item Dimensions | 6.5 x 3 x 3 inches | | Item Form | Putty | | Item Type Name | Duct Seal Compound | | Manufacturer | The Rectorseal Corporation | | Material Type | Putty | | Model | 81880 | | Number of Items | 1 | | Part Number | 81880 | | Style Name | 1 lb | | Surface Recommendation | Adheres to most clean dry surfaces | | UPC | 021449818803 | | Unit Count | 1.0 Count | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Rectorseal - **Item dimensions L x W x H:** 6.5 x 3 x 3 inches - **Material:** Putty - **Style:** 1 lb - **Water Resistance Level:** Water Resistant ## Images ![RectorSeal Duct Seal 81880 Compound, Easily Applied to Plumbing & Metal Fabrication, Paintable General Purpose Sealant, 1 lb - Image 1](https://m.media-amazon.com/images/I/51CWERSfKML.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: Is it paintable?** A: Cannot say. I bought it as a waterproof sealant and for this purpose it works perfectly. **Q: Is this for 1 lb? Or for 10?** A: 1 Lb. Was more than enough with plenty left over for other jobs **Q: Can this be used to patch a hole in the wall around stove gas pipe?** A: Are you talking about a gas line coming into the stove, I’d say yes it can be. If you’re talking about the actual stove pipe that gets hot then no. **Q: Would this work to fill a 2 inch hole with electrical wires coming through it that is immersed in hot water?** A: Yes, the only limit to this material is your wallet and imagination, ## Frequently Bought Together - Rectorseal 81880 1-Pound Duct Seal Compound Gray - Shurtape LS 300 HVAC Line Set Tape, 55m Length x 48mm Width, Black (Pack of 1) - 3/4" x 6 ft. Elastomeric Pipe Insulation, 1/2" Wall --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/30987123-rectorseal-duct-seal-81880-compound-easily-applied-to-plumbing-metal](https://www.desertcart.vu/products/30987123-rectorseal-duct-seal-81880-compound-easily-applied-to-plumbing-metal) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-04*